Answer:
(a) It depends on what cruising speed and cruising altitude
(b) 
(c) 
Explanation:
Formula for Kinetic energy: 
Formula for Potential energy 
(a) It actually depends on cruising speed and cruising altitude to tell which one requires more energy. However, cruising speed would have more impact than cruising altitude because it has a power of 2 in the energy formula.
(b) If we plug in v = 270 and m = 210000 to the Kinetic energy formula we should have
(c) If we plug in h = 10.4 km = 10400 m, m = 210000 and g = 9.81 we should have
<span>A lot of things take up electricity. Just leaving something plugged in can cost energy that could have been used for something more worth while. I think the biggest thing people do that wastes energy is that we leave lights on when we don't need them. I would like to improve this method by turning my lights off everytime I exit the room or by not even turning on the light if I can see without it. If it is daylight outside and you have a window in the room and you can see perfectly fine without the light, then why turn it on? No one ever thinks about that. Leaing our lights on is a common factor that raises our light bills. We always think we are gonna come back into the room in a minute but it ends up being a hour later. That's valuable money down the drain because no one is in the room using the light.
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Answer:
1240000 kg * m/s
Explanation:
p = momentum
p = mass * velocity in kg* m/s
62,000 kg * 20 m/s = 1240000 kg * m/s
Answer:
1.3
Explanation:
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